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authorHerbert Xu <herbert@gondor.apana.org.au>2007-12-04 20:07:27 +1100
committerHerbert Xu <herbert@gondor.apana.org.au>2008-01-11 08:16:32 +1100
commitfe70f5dfe1a7b5caab96531089dac3d8728c0ebd (patch)
tree8528d52f86d8c37a431e09b423f0a4ecaad4e6e3
parent6160b289929c0b622e64aa36106d8e6e53fcd826 (diff)
downloadlinux-fe70f5dfe1a7b5caab96531089dac3d8728c0ebd.tar.bz2
[CRYPTO] aead: Return EBADMSG for ICV mismatch
This patch changes gcm/authenc to return EBADMSG instead of EINVAL for ICV mismatches. This convention has already been adopted by IPsec. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--crypto/authenc.c2
-rw-r--r--crypto/gcm.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/crypto/authenc.c b/crypto/authenc.c
index 82e03ffa6245..6c9104ebf2f4 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -200,7 +200,7 @@ auth_unlock:
authsize = crypto_aead_authsize(authenc);
scatterwalk_map_and_copy(ihash, src, cryptlen, authsize, 0);
- return memcmp(ihash, ohash, authsize) ? -EINVAL : 0;
+ return memcmp(ihash, ohash, authsize) ? -EBADMSG: 0;
}
static void crypto_authenc_decrypt_done(struct crypto_async_request *req,
diff --git a/crypto/gcm.c b/crypto/gcm.c
index ed8a6261b346..d60c340b0b9d 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -327,7 +327,7 @@ static int crypto_gcm_decrypt(struct aead_request *req)
scatterwalk_map_and_copy(iauth_tag, req->src, cryptlen, authsize, 0);
if (memcmp(iauth_tag, auth_tag, authsize))
- return -EINVAL;
+ return -EBADMSG;
return crypto_ablkcipher_decrypt(&abreq);
}